Study on Pore and Fissure Structure Characteristics of Deep Soft Coal Rock

Table 3

Characteristics of pore diameter distribution proportion of coal sample.

Coal sample	Pore volume (cm^3/g)	Pore size ratio (%)			Surface area (m^2/g)	Pore size ratio (%)
		<10 nm		>100 nm		<10 nm		>100 nm
1	0.002967	15	60	25	0.3699	61.1	35.3	3.6
2	0.003224	16.4	59.7	23.9	0.4405	64.5	32.6	2.9
3	0.002865	12.4	61.5	26.1	0.2810	56.2	39.9	3.9
4	0.004229	12.92	66.2	20.9	0.5509	56.3	40.9	2.8
5	0.007375	61.1	25.8	13.1	4.7569	91.2	7.6	1.2